TCS
Company
Numerical Ability
Permutation and Combination
From exactly seven objects: R, S, T, D, L, M and G a group of exactly four objects must be selected in accordance with the following conditions: If R is selected, T must also be selected. If S is selected, D must also be selected. If L and M are both selected together, T cannot be selected. If D is not selected, which of the following can be, but does not have to be selected?
Read Solution (Total 9)
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- if Dis not selected....then S does not have to be selected
- 9 years agoHelpfull: Yes(12) No(0)
- RTLG
RTMG
GLMR
=3
- 9 years agoHelpfull: Yes(4) No(1)
- here are some cases to be made :
1) R&T : 5C2 ( because we already added remaining two)
2) S-> D: 5C2 ( because we already added remaining two)
3) L&M -> T(X) : 4C2 ( because T should not be added )
4) D(X) : 6C2 (Take any 4 out of 6 )
=> 5C2 +5C2 + 4C2 + 6C2
=> 10+ 10+ 6+ 15
=>41 Answer
- 9 years agoHelpfull: Yes(2) No(0)
- s and d must be selected together so when d is not seleted s is also not selected
- 9 years agoHelpfull: Yes(0) No(0)
- hey bro ...can u complete the questions plz
- 9 years agoHelpfull: Yes(0) No(1)
- If D is not selected then M does not have to be selected
- 9 years agoHelpfull: Yes(0) No(1)
- LMRG is the answer
- 9 years agoHelpfull: Yes(0) No(1)
- s shud not be selected
- 9 years agoHelpfull: Yes(0) No(0)
- RTLG
RTMG
= 2
conditions:
D is not selected means there is no selection for S
there is no condition for G, means already selected
IF L & M selected together Then T is not selected
so, RTLG and RTMG - 9 years agoHelpfull: Yes(0) No(0)
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